Ball cock



Feb. 26, 1952 J. J. DELANY ETAL BALL COCK Filed June 4, 1947 INVENTORS J'OHN I DEL ,4A/y Eon/nv 6"- 41] EL Patenfea Feb. ze, 1952 BALL COCK John J. Delany, Brooklyn, and Edwin C. Baisel, New York, N. Y., assignors to Delany Realty Corporation, New York New York ,v N. Y., a corporation of Application June 4, 194-7, Serial No. 752,410

This invention relates to ball cocks for controlling the water supply to ush tanks of closet bowls and the invention has particular reference to a ball cock which is substantially silent in operation and which is non-syphoning.

The invention has for an object the provision or" a ball valve which functions to reduce the velocity and pressure of the water passing therethrough so that the same is discharged without kinetic energy or velocity. It has been determined that the noise produced by the discharge of water from ball cocks has been due tothe high velocity and pressure of the water at the discharge orice. In order to overcome this objection and to produce a substantially silent valve, the present invention reduces both the pressure and velocitf,7 oi the water so that the same is discharged gravitationally in a downwardly directed stream from a discharge outlet located above the level of the water in the tank.

The invention has for a further object the provision of a ball cock having means for cushioning and for reversing the direction of flow of the water through the valve port thereof.

The invention also has for an object the provision of an adjustable valve element for regulating the volume of water owing 'through the ball cock.

Another object of the invention resides in the provision of a refill tube connected with the valve cock adjacent the discharge outlet.

Still another object of the invention is the provision of an integral valve body having a water passageway of continuously increasing cross-sectional area extending from the valve port to a discharge chamber located above the level of the Water in the tank and formed with a bottom `diS- charge outlet.

With the foregoing and other objects in View, reference is now made to the following specification and accompanying drawings in which the preferred embodiment of the invention is illustrated.

In the drawings:

Fig. 1 is a view in elevation of a ball cock constructed in accordance with the invention and illustrating the same in applied position in a flush tank with the tank shown in fragmentary sectional view.

Fig. 2 is a vertical sectional view through the ball cock.

Fig. 3 is aV horizontal sectional view thereof taken approximately on line 3 3 of Fig. 2.

Referring to the drawings' by characters oi reference, the ball cock I is adapted to be 1 claim. (C1. 137-104) mounted on the upper end of a water supply pipe II located within and extending upwardly through the bottom wall' of the usual ilush tank I2 as illustrated in Fig. 1 of the drawings. The ball cock is automatically actuated by a ball float I3 for refilling the tank with water after each flushing of the toilet bowl. Connected with the ball cock is a refill tube lf3 having its free open end extending into the upper end of the usual overflow pipe I5 so as to provide for a continuous discharge to the overilow pipe of a portion of the water passing through the ball cock during each lling of the tank.

The ball cock consists of a body I6 formed with a cylindrical bore Il opening through the upper and lower ends thereof and which is in communication through an opening I8 adjacent the lower end thereof with an elongated charnber IQ and through an opening 25 adjacent the upper end of the chamber I9 with a discharge chamber2I.

The lower portion of the cylindrical bore Il forms a valve chamber for regulating the flow of the water from the supply pipe I i while the opening I8, chamber I9, opening 20 and discharge chamberuZl form a passageway for reducing the velocity and pressure of the water admitted through the valve chamber for discharge thereof from the discharge chamber at a minimum velocity and pressure. In order to produce the aforesaid reduction in velocity and pressure, the said passageway progressively increases in crosssectional area from the valve chamber to the discharge chamber, thus the cross-sectional area of the chamber IS is relativelylarger than the cross-sectional area of the opening ES and the cross-sectional area of the opening 2t is rela.- tively larger than the `cross-sectional area of the chamber I9 while the cross-sectional area of the discharge chamber 2l is relatively larger than the cross-sectional area "of the opening 2).

l Mounted for vertical reciprocatory movement within the bore Il is av valve element 22 formed with an annular recess '23 inthe lower end thereof which recess is provided with a conical shaped wall 24 at the upper end thereof against which is disposed a iiexible resilient disk 25. A bushing 26 is threadedly engaged in the lower end of the bore Il and secures the ball cock I0 on the upper end of the supply pipe II. `The bushing 25 is formed with a reduced upper end 2l which extends into the annular recess 23 in the lower end of the valve element 22 with the upper end edge of said reduced portion 21 forming a valve seat adapted to be engaged by the disk 25 for shutting oif the flow of the water through the ball cock when the valve element 22 is in its lowermost position.

The valve element 22 is moved toward and away from the said valve seat by the movement of the ball Iioat I3, The ball float I3 is secured to the outer free end of a lever arm 28 which is pivoted for vertical swinging movement Aon a pivot pin 29 located in apertured lugs 30 formed integrally with the body I6 with the inner end of the lever arm protruding through a vertical Y slot 3I between the lugs 30 in the body I6 and connected with the valve element 22 by a ball and socket connection 32. A screw cap 33 threadedly engaged in the upper end of the bore Il is adjustable therein for setting the valve e1e ment 22 for admitting the described iiow of water between the upper end of the bushing 26 and the disk 25, The screw cap 33 also provides a stop for limiting the downward swinging movement of the ball float I3.

In order to prevent direct discharge of the water from the discharge chamber 2| 'and to cause the same to be discharged therefrom in relatively ne water particles a length of corrugated or plaited Wire screen 34 is formed into helical formation and arranged within the discharge chamber 2I adjacent the outlet 35 thereof. The screen 34 is arranged endwise or vertically within the discharge chamber 2I and the body I6 is formed with an inwardly directed annular lip 3B providing a shoulder on which the outermost convolution of the screen is disposed to support the same.

The refill tube I4 is connected with the discharge chamber adjacent the outlet 35 and below the top of the screen 34 so that in the event a vacuum occurs inthe water supply line II the vacuum produced in the discharge chamber will be broken by the intake of air through the outlet 35 to thus avoid any appreciable degree of suction occurring in the refill tube I4. The refill tube I4 being connected with the discharge chamber 2I below the top of the screen 34 or with the screen 34 in covering relation with the opening into the refill tube I4 permits only a limited amount of water to flow through the rell tube.

It will be understood that the reduced upper end 21 of the bushing 26 projecting into the annular recess 23 in the lower end of the valve element 23 provides a relatively narrow port for the now of the water therebetween and which produces a reversal of the direction of flow of the water while the conical formation of the upper face 24 of the recess 23 provides means whereby the bushing 26 will be flexed into conical formation by the force of the water admitted through the upper end of the bushing 26 to thereby provide a cushioning and dampening action of the water admitted therethrough.

The body I6 is preferably formed as a casting with three parallel cavities which open through the upper end thereof. This permits of the machining of the cavities through the open ends so as to provide the bore Il', chamber I9 and discharge chamber 2i with smooth inner surfaces for the flow of the water. The chamber I9 and the discharge chamber 2I are then closed at their upper ends by means of screw plugs 3l and 3B. In addition thereto vthe screw plugs 31 and 38 may be readily removed to permit of the cleaning of the chamber I9 and discharge chamber 2|, While the screw plug 33 also permits of the convenient insertion and removal of the screen 34.

What is claimed is:

In a ball cock, a valve body having a circular valve chamber, a valve seat located in said valve chamber and defining a valve port through which water is admitted, a valve element located in said valve chamber and movable toward and away from said seat for regulating the flow of water therethrough, said valve body having a discharge chamber of relatively larger cross-sectional area than said valve chamber and being provided with a downwardly directed discharge outlet located above the valve port, a passageway in said valve body extending from said valve chamber below said valve seat to said discharge chamber adjacent the top thereof, said passageway being of progressively increasing cross-sectional areaI in the direction of flow of the water for reducing the pressure and velocity of the water flowing from the valve chamber to the discharge chamber, said valve body having an opening adjacent the out let of said discharge chamber for receiving a refill pipe, and a screen located in said discharge chamber' over said discharge outlet through which the water is discharged in relatively fine water particles and said screen being disposed in covering relation with the opening for said refill pipe for preventing too free flow therethrough.

JOHN J. DELANY.

EDWIN C. BAISEL.

REFERENCES CITED UNITED STATES PATENTS Number Name Date 550,287 Spear May 19, 1896 943,755 Morrison Dec. 21, 1909 1,027,965 Young May 28, 1912 1,096,237 Gehrke May 12, 1914 1,377,883 Grosvald 4 May 10, 1921 1,432,145 Yorks Oct. 17, 1922 1,630,265 Holden May 31, 1927 1,707,841 Fisher June 24, 1930 2,012,255 Binnal Aug. 20, 1935 2,020,463 Fillmann Nov. 12, 1935 2,046,792 Schmiedeknecht July 7, 193 2,180,310 Myrick Nov. 14, 1939 2,277,878 Morris Mar. 31, 1942 2,299,074 Bereny Oct. 20, 1942 2,382,500 Owens Aug. 14, 1945 

